Ahrensburg Castle (Schloss Ahrensburg) in Holstein. 34 km from Hamburg
Henrich Carl von Schimmelmann purchased the property in 1759. (The year
that Carl Hans Paul Kluge (aka Charles French) was born at Ahrensburg.
von Schimmelman made substantial improvements and used it as his Summer Palace, while Minister of Finance for Denmark.
For more information about Carl von Schimmelmann see https://en.wikipedia.org/wiki/Heinrich_Carl_von_Schimmelmann